Provide text alternatives for any non-text content so that it can be changed into other forms people need, such as large print, braille, speech, symbols or simpler language.

About

The main objective of alternative text is to provide textual replacement for pictures which helps the visually impaired individuals while using the speech synthesizers to read the text which will be able to describe the picture. Also, for slower modem, computer users may not be able to download images or may have set their browser to ignore large graphic files. The "longdesc" attribute should be used when an image conveys important information such as pie chart or a scientific discovery.

Many browsers display the Alt text when the customer rests their mouse on the image. A textual equivalent should be provided for every non-text element including:

• Images
• Graphical representation of text
• Image map regions
• Animations
• Applets and programming objects
• ASCII art
• Frames, scripts, images used as bullets
• Spacers
• Graphical buttons
• Images
• Sounds
• Standalone audio files
• Audio tracks of video
• Video

Example:

Before Rectification

After Rectification